If you have a Linux or BSD machine running Samba you may notice that its exported shares round up all files under a megabyte (i.e. 720kB becomes 1MB) by Finder.

To fix this problem add the following line to the server's smb.conf:

allocation roundup size = 0

Restart the Samba daemon, reconnect to the share, and files under one megabyte should now be calculated correctly in Finder.

[crarko adds: I haven't tested this one. I would assume (but don't know) that this change may also be needed to the Samba server on a Mac.

On most systems this file is located at /etc/samba/smb.conf or /usr/local/samba/lib/smb.conf. In Snow Leopard the location is /etc/smb.conf. You may want to save off a backup copy of the file prior to editing it. To save it you need an editor that can authenticate as root, such as TextWrangler or BBedit or you can use a command line editor invoked with sudo.]

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Mail forward ends in revealing the hidden part of system
Authored by: HAB on Feb 10, '11 08:34:07AM

Just discovered one feature/bug? in Mail 4.4, Mac OS X 10.6.6.

Let us say I receive an e-mail with several attachments, at least one of them is a .zip file. Then I want to Forward this message with some of those attachments but not with all. I accidentally double-clicked the zip file which I wanted to delete from the message being forwarded and now Mac opens this zip attachment as if it would be normally downloaded. The Finder window which shows this attachment is in this moment deep in the system cache/temp structure and I can browse through the whole, normally hidden portion of the system.

I do not believe, it is a type of behavior which is desired. Since I have not found any "Mac bug reporting" and I am not sure this is standard, I try this forum which looks open to this kind of reports.

This is also a client issue, as it does not occur on 10.4 based clients, no matter what the setting is on the server. 10.6 does have the issue, and it is solved by putting the line in the server config file "smb.conf" in the global section:
[global]
allocation roundup size = 0